HMS Caicos
1943 Colony-class frigate
HMS Caicos was a Colony-class frigate of the United Kingdom that served during World War II. She was originally ordered by the United States Navy as the Tacoma-class patrol frigate USS Hannam and was transferred to the Royal Navy prior to completion. It was named after the Caicos Islands.
After her return to U.S. Navy custody, she was sold to Argentina and served in the Argentine Navy (Armada de la Republica Argentina) as a frigate under the names ARA Trinidad (P-34) and ARA Santísima Trinidad (P-34) from 1948 to 1962. After a refit she then served as a survey ship as ARA Augusto Lasserre (Q-9) from 1963 to 1969.
Construction and acquisition
Originally designated a "patrol gunboat", she was ordered by the United States Maritime Commission under a U.S. Navy contract as Type S2-S2-AQ1 hull number 1659 and named USS Hannam. She was reclassified as a "patrol frigate", PF-77, on 15 April 1943 and laid down by the Walsh-Kaiser Company at Providence, Rhode Island, on 23 April 1943. Intended for transfer to the Royal Navy, the ship was renamed Caicos by the British before being launched on 6 September 1943.
Service history
Royal Navy, World War II, 1943–1945
Transferred to the United Kingdom under Lend-Lease on 31 December 1943, the ship was commissioned in the Royal Navy as HMS Caicos (K505) – sources claim that she was partially funded by the Turks and Caicos Islands colony, after part of which she was named – on either 31 December 1943 or 2 January 1944.
Uniquely among all World War II frigates, Caicos was fitted to perform aircraft direction duties. The Royal Navy originally intended to send her to the Indian Ocean, but instead assigned her to duty in the North Sea, where she attempted to detect German V-1 flying bombs during their flights toward targets in Great Britain.
The public source identifies “HMS Caicos” as 1943 Colony-class frigate. This brief keeps that definition visible, then builds a research path around Caicos, Colony-class and frigate.
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Vocabulary and entity names are the principal evidence signals here, because they determine the precision of every later search. The source revision retrieved here is dated Sep 17, 2026. The linked authority identifier is Q11706972. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1948, 1962, 1963 and 1969.
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This entry incorporates text from “HMS Caicos” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.